/Engine/Plugins/Experimental/StructUtils/Source/StructUtilsEngine/Public/StructUtilsDelegates.h
Called after the FInstancedStructs has been reinstantiated. E.g. safe to update UI.
typedef TMulticastDelegate_OneParam< void, const [UUserDefinedStruct](API\Runtime\Engine\Engine\UUserDefinedStruct) & > FOnUserDefinedStructReinstanced